/Engine/Source/Runtime/RenderCore/Public/RenderGraphResources.h
Note, IndirectParameterStruct should be one of the: structFRHIDispatchIndirectParametersstructFRHIDrawIndirectParametersstructFRHIDrawIndexedIndirectParameters
template<typename IndirectParameterStruct> static [FRDGBufferDesc](API\Runtime\RenderCore\FRDGBufferDesc) CreateIndirectDesc ( uint32 NumElements )